Cross-chain connecter for antiskid devices



Oct. 28, 1924. 1,513,419

c. M. POWER CROSS CHAIN CONNECTER FOR ANTISKID DEVICES Filed Dec. 5,1921 Patented Get. 28, 1924.

UFJHTED gifiaTEE CHARLES M. POWER, OF PITTSBURGH, PENNSYLVANIA,AS$IGNOR- TO UNITED STATES CHAIN 85 FORG-ING (30., OF fITTSBURGl-I,FENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

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GROSS-CHAIN GONNECTER FOR ANTIEEKID DEVICES.

Application filed December 3, 1921.

To all whom it may concern Be it known that I, CHARLES M. POWER, acitizen of the United States, residing at Pittsburgh, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Cross- Chain Connecters for Antiskid Devices; andI do hereby declare the following to be a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, forming part of this specification.

This invention relates to anti-skid devices for vehicle tires, theobject being to provide a convenient and cheap means for securing orcoupling the cross chains to the side chains, whereby the cross chainsmay be readily renewed when worn or broken, without requiring the use ofspecial tools or appliances for deforming the coupling members.

The invention consists in a coupling member or link wherein one end ofthe body portion is provided with an eye or opening for cooperation withthe end link of the cross chain and the other end of which is providedwith a hook formed by a plurality of diverging spirals forming, togetherwith the body portion spiral, entrance openings through which the linkof the side chain may be inserted in succession and by a spiral ortwisting movement and from which it cannot readily escape when thecompanion links of the side chain are in normal position.

Referring to the accompanying drawg a Figure 1 is a view of a section ofan antiskid device embodying the present invention;

Fig. 2 is a perspective view of one end of a cross chain with thecoupling member thereon, and in dotted lines a portion of a side chainwith the co-operating link in successive positions of insertion orremoval;

Figs. 3 and 4 are a plan and an elevation of the coupling link.

The side and cross chains A and B of the anti-skid device are shown ofconventional construction; that is to say, the links of the side chainsA are formed up of wire or bar stock with an eye in one end in which thecompanion link is held and with straight side bars a and a rounded endwhich passes Seriall No. 519,646.

through the eye of the other companion link. The cross chains are of theconventional welded and twisted link formation and each cross chain isprovided with a coupling member at each end by which it is attached tothe side chains.

The coupling member of the present invention which is also preferablyformed of wire or bar stock has the body portion in the form of a loop Cconstituting an eye or opening for the engagement of the end link of thecross chain. The two ends of the wire or bar stock are formed into ahook, the extremities of the hook being spread apart and down on eachside of the body portion. The terminal of each bar of the link,therefore, forms an outwardly or laterally extending spiral E andtogether the two spirals constitute the hook with which the side chainlink co-operates.

This formation, it will be noted, provides two entrance openings to thehook which are arranged at an acute angle to each other, and throughwhich the side chain link must be passed in succession in assembling'thetwo members, and this assembling is possible only because of thepossibility of moving the companion link of the side chain up toward theeye end of the link, and inserting the side chain link more or lessendwise through the entrance opening with a spiral twisting motion.

Both of the terminals of the spirals are preferably brought down intothe plane of the body portion of the link, but are pref' erably notextended beyond that plane in order that no sharp projections may beformed which would be liable to injure the tire or casing when thedevice is in use.

\Vith this device the cross chains may be readily attached or detached,but in practice it is found that there is little or no liability oftheir becoming accidentally disengaged and hence the device presentsadvantages of simplicity and security and at the same time obviates thebothersome necessity of pr0- viding special tools for the application orremoval of worn or broken cross chains.

What is claimed is:

l. A hook link for the attachment of cross chains to the side chains ofanti-skid devices, having at one end an opening in the body portion forthe attachment of the cross chain and at the other end. plural hooksformed by divergent spirals each extending upwardly from the body andhaving their terminals spaced on opposite sides of the body to form tWospiral divergent hook entrance openings at opposite sides of the linkbody through which the side chain link may be successively passed.

2. A hook link for the attachment of cross chains to the side chains ofanti-skid devices 10 formed by a body loop for the end of the CHARLES M.POl VER.

